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Roaldite Mineral Data |
General Roaldite Information |
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(Fe,Ni)4N | |
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Molecular Weight = 237.96 gm | |
Iron 89.18 % Fe | ||
Nickel 4.93 % Ni | ||
Nitrogen 5.89 % N | ||
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100.00 % | ||
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Fe2+3.8Ni0.2N | |
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Platelets in kamacite phase of coarse octahedrites. | |
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Approved IMA 1981 | |
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Jerslev meteorite, Sjaelland, Denmark and Youndegin meteorite, Avon, Western Australia, Australia. Link to MinDat.org Location Data. | |
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Named in 1981 for Roald Nielsen (b.1928), Danish metallurgist. | |
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Roaldite ![]() |
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ICSD 79980 | |
PDF 6-627 | ||
Roaldite Crystallography |
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a = 3.79, Z = 1; V = 54.44 Den(Calc)= 7.26 | |
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Isometric - Hextetrahedral H-M Symbol (4 3m) Space Group: P 43m | |
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By Intensity(I/Io): 2.191(1), 1.144(0.85), 1.897(0.75), | |
Physical Properties of Roaldite |
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Tin white. | |
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7.21 | |
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Opaque | |
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5.5-6.5 - Knife Blade-Pyrite | |
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Metallic | |
Calculated Properties of Roaldite |
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Bulk Density (Electron Density)=6.80 gm/cc note: Specific Gravity of Roaldite =7.26 gm/cc. |
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Fermion Index = 0.07 Boson Index = 0.93 |
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PERoaldite = 29.58 barns/electron U=PERoaldite x rElectron Density= 201.06 barns/cc. |
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GRapi = 0 (Gamma Ray American Petroleum Institute Units) Roaldite is Not Radioactive |
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Roaldite Classification |
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01.01.18.02 (01)Native Elements | |
(01.01)with metallic elements other than the platinum group | ||
(01.01.18)Dana Group | ||
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01.BC.05 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides) | |
01.B - Metallic Carbides, Silicides, Nitrides and Phosphides | ||
01.BC -Nitrides | ||
Other Roaldite Information |
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NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) | |
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Links to other databases for Roaldite : 1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - GeoScienceWorld 6 - Google Images 7 - Google Scholar 8 - Handbook of Mineralogy (MinSocAm) 9 - MinDAT 10 - Mineralienatlas (Deutsch) 11 - Online Mineral Museum 12 - QUT Mineral Atlas 13 - Ruff.Info Search for Roaldite using: Visit our Advertisers for Roaldite : Ask about Roaldite here : Print or Cut-and-Paste your Roaldite Specimen Label here :
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